As another comment points out: that's nothing compared to high energy/particle physics!
The Pierre Auger Observatory certainly is a large collaboration for the astroparticle physics domain though. It's a big international collaboration.
Quick anecdote: my name (S Mueller) is not on that paper's author list because we had a rule that you had to be in the collaboration for a year before getting authorship. You stayed on for a year after leaving. Very reasonable! At the time I was nonetheless a bit bummed about missing out on the big Science paper. I guess I'm on the retraction though ;)
What about power draw? Maybe that doesn't count as a side channel (I'm not a security guy). Afaik, CMOS transistors mostly draw power on switching state, so a normal adder adding 0+0 or 1+1 is visible in the power draw.
I googled a bit and found Sense Amplifier-Based Logic (SABL). Super interesting :^)
Power draw is a side channel, yeah. It's not as easy to exploit in software as timing (including memory timing), but there are software exploits in some cases if it affects the CPU's frequency (HertzBleed) or if it can be read through channels like a sound card or radio receivers. For attackers who have physical access it's very much in scope.
For software like seL4 it would generally be out-of-scope, because it depends too much on the specific hardware and specific application, not just on the kernel, and protection usually requires extensive countermeasures in those places.
I find this very interesting. I have implemented AO myself and understood that its physically inaccurate (it should really be radiosity presence, not ambient occlusion), but have believed the results to look realistic. Or rather; better than flatly lit, which makes geometry hard to understand.
Thank you for these photographs! It would be awesome to have a CG benchmark like this (geometry + light properties) that we could compare to. I'm sure this exists already but. Very neat!
Classic SSAO is very similar to performing an "unsharp mask" based on the depth buffer. This has been proposed "a simple and efficient method to enhance the perceptual quality of images that contain depth information" in the paper "Image Enhancement by Unsharp Masking the Depth Buffer" which came out a year after SSAO was published by Crytek.
Nowadays it’s common for SSAO to actually do local radiosity approximation via ray marching. But back in the day when this article was written, that was too expensive so you approximated it by detecting sharp transitions in the depth buffer.
I was under the impression that "individual engineers ..." is basically implied always, if not just outright lies, I don't trust these listings very highly. Except when its clear that the companies are actually customers. Like; how do I even add my company to this list? Email them?
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